scholarly journals Influence of sanitary – domestic conditions in the rural settlements of dnepropetrovsk region on the peasants’ healh

2020 ◽  
Vol 73 (2) ◽  
pp. 278-284
Author(s):  
Luibov V. Hryhorenko ◽  
Serhii V. Abramov ◽  
Volodymyr M. Baibakov ◽  
Valerii A. Digtiar ◽  
Dmytro M. Lukianenko
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Tap Water ◽  
Drinking Water Quality ◽  
Rural Settlements ◽  
Frequency Of Use ◽  
Sanitary Conditions ◽  
Treated Drinking Water ◽  
Health Deterioration

The aim: Implementation results of sociological survey to the practice of hygienic researches at the subjective estimation of the drinking water quality and sanitary conditions of people’s life. Materials and methods: At our study was used standardized “Questionnaire survey about quality of piped drinking water, which enters to the building (apartment)”, which contained 25 questions. In the sociological survey were participated 150 respondents. Results: Peasants of Dnepropetrovsk region considered that the following indicators of drinking water quality impact on their health: deterioration quality of piped drinking water, smell – 22.6%, color – 14.6 %, rust – 13.3 %, precipitate – 8.0 %, turbidity and suspended solids – 10.6 %, taste and aftertaste – 13.3 %, foam and impurities – 10.6 % (p<0.05). Some of peasants (14.6 %) have unsatisfactory sanitary conditions, living on 5 – 6 persons in 1 rooms flat (p<0.05). Conclusions: Results of sociological survey shown that among rural residents increased the demand for a consumption of pre-treated drinking water, due to the deterioration quality of tap water in the rural area. It was determined, that increased frequency of use the bottled drinking water – daily it was used by 13 rural respondents (17.3%), once a week – 21 respondents (28%), 2-3 times a week – 8 respondents (10.6%).

scholarly journals Evaluation of Drinking Water Quality in Schools in a District Area in Hanoi, Vietnam

2020 ◽  
Vol 14 ◽  
pp. 117863022095967
Author(s):  
Dang The Hung ◽  
Vu Thi Cuc ◽  
Vu Thi Bich Phuong ◽  
Dao Thi Thanh Diu ◽  
Nguyen Thi Huyen Trang ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Primary Schools ◽  
Tap Water ◽  
Total Iron ◽  
Drinking Water Quality ◽  
National Standard ◽  
Taste And Odor

Background: Drinking water quality affects directly human health. Assessment and prevention of water-borne diseases are crucial for primary prevention, especially for children. Objective: The main aim of this study was to investigate the quality of drinking water from tap water in preschools and primary schools in a district area in Hanoi City, Vietnam. Methods: A cross-sectional study was performed from August to October 2019. Water samples from tap water of 154 schools in a district area of Hanoi were collected to determine the quality of drinking water. From each school, at least 2 bottles of water samples were collected on the basis of a standard operating procedure (SOP). Each water sample was analyzed for microbial and physicochemical parameters, including Color, Taste and Odor, Turbidity, pH, Nitrite, Nitrate, Ammonium, Total Iron, Permanganate, Chloride, Hardness, Total Manganese, Sulfate, Arsenic, Coliform, and E.coli, by analytical methods. The obtained values of each parameter were compared with the standard values set by WHO and National Technical Regulation on Domestic Water Quality of Vietnam. Results: All of the schools employed community water system as a main source for drinking water. The results showed that all tested samples were found to be within the standards for some physicochemical properties, including Color, Taste and Odor, Hardness, Chloride, Total Iron (Fe2+ và Fe3+), Total Manganese (Mn), Nitrate (NO3–), Sulfate (SO42–), and Total Arsenic (As). On the other hand, some samples did not meet the allowable limits of the national standard, due to pH (3.9%), Turbidity (0.6%), Nitrite (3.2%), Permanganate (6.5%), and Ammonium (5.8%). Furthermore, the microbial data revealed that the substandard water samples from municipal water systems were contaminated by Coliform (9.7%) and/or E.coli (7.8%). Conclusions and recommendations: Contaminants such as bacterial and chemical agents in to drinking water could be occurred during transport, storage and handling before using by the consumer without regular surveillance. A periodic treatment procedure and monitoring system to keep the level of microbial and chemical contamination of drinking water in schools under control should be performed.

scholarly journals Health Risks for the Population of the Voronezh Region Related to Drinking Water Quality

2020 ◽  
pp. 37-42
Author(s):  
II Mehantiev
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Health Risks ◽  
Hazard Identification ◽  
Drinking Water Quality ◽  
Monitoring Site ◽  
Rural Settlements ◽  
Voronezh Region

The object of the study was the centralized drinking water supply system of the Voronezh Region. The purpose of the study was to assess health risks for the population of the Voronezh Region associated with drinking water quality. Materials and methods: The data of the regional drinking water quality monitoring system, which included monthly sampling and testing of water samples at 553 sites in 32 administrative districts and the city of Voronezh for 8 priority sanitary and chemical indicators (total hardness, concentrations of iron, manganese, nitrates, nitrites, boron, fluorine, and ammonium ions) for the years 2010-2019 were used. To achieve the objective based on monitoring studies of drinking water quality in the water distribution system, four generally accepted stages of risk assessment were implemented including hazard identification, evaluation of dose-response relationship, exposure assessment, risk quantification and characterization. When evaluating the exposure, four calculation scenarios were considered and probable body burdens for children and adults were calculated using the average long-term concentration and 95 percentile of concentration in a separate administrative territory. Results: Regional non-carcinogenic risks estimated on the basis of the average regional concentrations of priority pollutants did not exceed acceptable values (HQ < 1) for 6 of 7 ingredients. Unacceptable risk levels were observed in two of 33 administrative districts due to the presence of nitrates in drinking water (HQ ranged 1.34 to 2.95 for children and equaled 1.26 for adults). Detailed information for separate settlements (control points) using an aggravated scenario helped identify 4 rural settlements in 2 administrative districts with unacceptable risks for the child population of iron in drinking water (HQ up to 2.31), 230 settlements in 27 districts – of nitrates (HQ up to 9.51), one settlement – of boron (HQ = 1.17), and 35 settlements in 13 districts – of fluorine (HQ up to 4.17). Discussion: Summarizing the results of the regional studies of health risks for the population associated with the quality of drinking water, one can testify the shift of the problem to rural settlements where water treatment is practically null. The use of average concentrations of chemicals in drinking water in administrative districts proved to be insufficiently objective and having significant uncertainties. The reduction of uncertainties was achieved by a detailed review of the information for each monitoring site and the use of the 95th percentile concentration of the chemical to assess the health risks for children and adults. Conclusions: With a sufficient degree of certainty, the priority regional indicators determining the unacceptable level of non-carcinogenic risk (HQ > 1) associated with the quality of drinking water include elevated levels of nitrates, fluorine, boron, and iron. Key words: drinking water, centralized water supply, water quality, public health risk.

Sustainable improvement of drinking water quality by nanofiltration powered by renewable energy

2013 ◽  
Vol 13 (2) ◽  
pp. 309-318 ◽  
Author(s):  
J. A. López-Ramírez ◽  
E. Lee ◽  
R. J. Castañeda ◽  
J. Cho ◽  
N. García-Vaquero Marín
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Renewable Energy ◽  
Quality Improvement ◽  
Pilot Plant ◽  
Tap Water ◽  
Drinking Water Quality ◽  
Water Quality Improvement ◽  
Sustainable Improvement

Desalination membrane technology is increasingly used for water production. However, the main disadvantage of desalination is related to energy consumption and CO2 emissions, so desalination powered by renewable energy (RE) is getting interest. In this study nanofiltration (NF) membranes have been used for drinking water quality improvement in a pilot plant (50 m3/day) powered by RE (11.0 kW). The aims of this paper are: (1) to study the viability of a hybrid RE system to improve drinking water quality, (2) to study the availability of RE for NF desalination, and (3) to improve the chemical and organoleptic quality of tap water and tap water blended with nanofiltered water. Results confirm that desalination powered by RE is an interesting option for water quality improvement. Thanks to the hybrid system of the pilot plant, operation is around 93% of time. After several blind tastings, 82% of the tasters preferred water blended with nanofiltered water rather than current tap water.

scholarly journals DEVELOPMENT OF A PORTABLE HOUSEHOLD WATER DEVICE FOR IMPROVING DRINKING WATER QUALITY IN NIGERIA

2020 ◽  
Vol 5 (2) ◽  
pp. 60-66
Author(s):  
J.G. Akinbomi ◽  
I.I. Odika
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Samples ◽  
Tap Water ◽  
Drinking Water Quality ◽  
State University ◽  
Water Filter ◽  
Household Water ◽  
Α Level

Pipe borne water supplied to Nigerian households may not always meet the accepted drinking water quality standards due to possible water pipe damage. The objective of this study was, therefore, to develop a portable water filter device for improving household drinking water quality. Five litres of representative tap water samples collected from Lagos State University Staff quarters were passed through the developed device. The experimental variables investigated for data acquisition were aeration period of untreated tap water; device backwashing operation cycles and retention times of tap water in the filter device. The results of the analyses of water samples for the various values of the experimental variables showed that the range values of water parameters between the treated and untreated tap water samples were 0.04-0.05, 0.02-0.03, 0.04-0.12, 0.3-0.4, 125-137, 10-20, 3-10 mg/L for barium, chromium, iron, pH, Total Dissolved Solids, hardness and chloride, respectively. Although the developed device helped in improving the quality of the tap water; the p-values for the different experimental variables were greater than α-level of 0.05 indicating the non-significance of using the developed water device. Consequently, future study will consider other experimental variables that will justify the significance of using the developed device.

Assessing the drinking water quality of educational institutions at selected locations of district Swat, Pakistan

2021 ◽  
Vol 80 (8) ◽  
Author(s):  
Muhammad Salam ◽  
Fakhri Alam ◽  
Md. Nuralam Hossain ◽  
Mian Abdal Saeed ◽  
Tasir Khan ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Drinking Water Quality ◽  
Educational Institutions

scholarly journals Influence of the quality of drinking water supply sources on the formation of the ecologically-dependent pathology of the population of the Republic of Dagestan

2021 ◽  
Vol 15 (4) ◽  
pp. 168-176
Author(s):  
M. G. Daudova ◽  
R. B. Bagomedova ◽  
K. K. Bekshokov ◽  
M. M. Medzhidova ◽  
S. M. Nakhibashev ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Supply ◽  
Negative Impact ◽  
Kidney Diseases ◽  
Ecological Condition ◽  
Drinking Water Quality ◽  
Chemical Contamination ◽  
The Republic

Aim. Study of the influence of drinking water quality on the ecologically-dependent morbidity of the population of the Republic of Dagestan.Material and Methods. Methods of current and retrospective analysis of regional health indicators and methods of mathematical-statistical and medical-geographical analysis were used. Statistical processing of the results was carried out using the STATISTICA and Excel software packages. When carrying out laboratory studies on the quality of drinking water, we used a Lumex atomic absorption spectrometer "MGA-915MD".Results. Numerous hygiene studies indicate the direct impact of unsatisfactory drinking water quality on the health of a population. The relationship between sanitary and chemical indicators and the incidence rate for a number of nosological forms has been proven. It is generally accepted that human health is influenced by lifestyle factors (working, living and relaxation conditions), heredity and the ecological condition of the area of residence, including the quality of drinking water. Although it is not possible to differentiate the share of the negative effect caused by the consumption of poor quality drinking water but the incidence of certain nosological forms (cancer of the esophagus, gastrointestinal tract and kidney diseases) in the those regions of the Republic of Dagestan under consideration correlates with the characteristics of drinking water.Conclusion. The problem of pollution of water supply sources for the population in the dynamics of the long-term remains a priority concern. The quality and safety of drinking water are decreasing, which cannot but have a negative impact on public health. Correlation linkages between indicators of drinking water quality and oncological morbidity of the population were also established in indicators below the maximum permissible concentrations, which corresponds to a typical logistic model of causal relationships and serves as evidence of the high dependence of health disorders on chemical contamination of water supply sources. 

scholarly journals Prevalence and public health implications of mycotoxigenic fungi in treated drinking water systems

2019 ◽  
Vol 17 (4) ◽  
pp. 517-531 ◽  
Author(s):  
Ntombie Thandazile Mhlongo ◽  
Memory Tekere ◽  
Timothy Sibanda
Keyword(s):  
Public Health ◽  
Water Quality ◽  
Drinking Water ◽  
Distribution Systems ◽  
Water Distribution ◽  
Opportunistic Infections ◽  
Drinking Water Quality ◽  
Pathogenic Microorganisms ◽  
Mycotoxigenic Fungi ◽  
Treated Drinking Water

Abstract Insufficient potable water resources and poorly treated drinking water quality are the world's number one cause for preventable morbidity and mortality from water-related pathogenic microorganisms. Pathogenic microorganisms, including mycotoxigenic fungi, have been identified in treated drinking water. This paper presents a review of mycotoxigenic fungi as a health risk to the public as these fungi are responsible for allergies, cancers and opportunistic infections mainly to immunocompromised patients. The exacerbating factors contributing to fungal presence in water distribution systems, factors that lead to fungi being resistant to water treatment and treated drinking water quality legislations are also discussed. This paper provides a review on the prevalence of mycotoxigenic fungi and their implications to public health in treated drinking water, and the need for inclusion in treated drinking water quality regulations.

scholarly journals PIH78 Effect of Hospital Wastes on Drinking Water Quality of KPK Hospitals Pakistan

2012 ◽  
Vol 15 (4) ◽  
pp. A205-A206
Author(s):  
B.S.Z. Bibi Saima Zeb ◽  
D.S.A. Saira Azhar ◽  
Q.M. Qaisar Mahmood
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Drinking Water Quality ◽  
Hospital Wastes
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